Posted inAI
Master Prompt Caching: How We Slashed Claude and Gemini API Costs by 90%
Slash your LLM expenses and latency. This guide shows you how to use Prompt Caching in Claude and Gemini to save up to 90% on API costs with Python examples.
Posted inDatabase
Don’t Just Backup, Verify: Building an Automated Database Restore & Integrity Check Pipeline
Most teams set up database backups and never test them — until the day they need a restore and find out the backup was silently corrupt. This guide walks through building an automated pipeline that restores every backup into a throwaway Docker container, runs SQL integrity checks, and alerts you only on failure, so you always know your backups actually work.
Posted inProgramming
High-Performance Image Processing in Go: Why libvips Beats the Standard Library
Learn how to replace memory-heavy image libraries with bimg and libvips in Go. This guide provides a practical worker pool implementation and tips for reducing RAM usage by 90%.
Posted inDevOps
Beyond Local Storage: Building Fault-Tolerant Kubernetes Volumes with Longhorn
Is your data trapped on failing nodes? Learn how to use Longhorn to build a resilient, distributed storage layer for Kubernetes with 3-way replication and S3 backups.
Posted inDevOps
Solving the ‘Pending’ LoadBalancer Problem on Bare-metal Kubernetes
Struggling with IPs on your local Kubernetes cluster? This guide shows you how to use Kube-vip to enable high availability and load balancing on bare-metal hardware.
Posted inDevOps
Kubernetes Cleanup: Using Kube-janitor to Slash Dev and Staging Costs
Tired of high cloud bills from idle Kubernetes resources? Learn how to use Kube-janitor to automate the cleanup of temporary namespaces and deployments in Dev and Staging.
Posted inSecurity
OpenSSL CLI: Debugging Production HTTPS and Building a Private CA
Master the OpenSSL CLI to fix SSL/TLS errors, verify key matches, and build a private Certificate Authority. A practical guide for IT engineers who need results, not just theory.
Posted inAI
Build an AI DBA for PostgreSQL: Automate Slow Query Analysis with DeepSeek-R1
Tired of manual EXPLAIN ANALYZE sessions? Build an automated AI DBA assistant using DeepSeek-R1 to find bottlenecks and generate index suggestions in seconds.
Posted inDatabase
SQL Server on Linux: A Practical Guide to Setup, Security, and Backups
Ditch the Windows licensing fees. This guide walks you through installing SQL Server 2022 on Ubuntu, securing your instance against bots, and setting up automated backups.
Posted inSecurity
Defeating Log Tampering with Journald Forward Sealing (FSS)
Attackers often wipe Linux logs to hide their tracks. This guide shows you how to use Journald Forward Sealing (FSS) to cryptographically sign your logs, ensuring their integrity even if your server is compromised.